before the anal angle al-e two short horizontal black dashes followed 

 by a vertical streak of lead-blue, and there are three or four similar 

 black dashes before the apex, also followed by a streak of lead-blue. 



The hind wings above and below and the abdomen are ashy gray. 

 The under side of the fore wings is darker, and has a series of light 

 costal streaks on the outer part. 



The moths pair and the female lays her eggs, when in confinement, 

 in clusters of from four to ten or eleven, often overlapping each 

 other. They are oval, flattened, four-fifths of a millimeter long, and 

 half as wide, sordid white with a narrow border of clear and trans- 

 parent white, while the center of the eggs is one complete mass of 

 minute granules. In about three days the center of the egg has 

 grown darker, and the granules larger ; and on either side there is a 

 clear, white, oval space about one-third the length of the egg. In 

 about two days more the outer edge of the center is the same color as 

 in the last stage, and inside this is a narrow, lighter band, while in 

 the center is seen the form of a cylindrical larva larger at one end, 

 and both ends slightly curved towards each other; and in one or two 

 days more the whole form of the larva is visible, the head, thoracic 

 and anal shields being l)lack. The egg stage lasts from eight to 

 eleven days. 



When the young larva hatches it does not eat the shell of its egg, 

 but goes on to the tenderest leaves and almost immediately begins 

 spinning a microscopic layer of silk, under which it eats the outer 

 layer or epidermis of the leaf. The larva is then about three milli- 

 meters in length, of a creamy white color, with head, thoracic and anal 

 shields blackish brown, and a few minute pale hairs on the body ; the 

 head is very large for the rest of the body. In a week the larva is 

 nearly four millimeters long, light yellowish brown, with the head, 

 thoracic and anal shields dark brown, and it eats minute holes 

 through the leaf, its silken web now being visible to the naked eye. 

 The larva gradually becomes a trifle more brownish, increases in size 

 and enlarges its web along the side ol the midrib. 



Late in the fall the silken web is quite heav}' and thick, and the 

 larva deposits its excrements in little black pellets in the form of a 

 tube, under the web, within which it hibernates during the winter. 

 Not unfrequently two leaves are fastened together by the silk of the 

 web, and sometimes a leaf is secured to a branch of the tree in the 

 same manner. 



About the first of May the larva measures seven millimeters when 



